Lock.



Patentej May I, I900. F. WRZESINSKI.

LOCK.

2 Sheets-Sheet I.

(No Model.)

Patent ad May I, moo. F. wnzzsmslu. LOCK. (Application filed Dec. 21, 1899.)

(No, Model.)

2 Shaats-Shaet 2.

. Lye/e70 UNITED STATES PATENT QFFICE.

FRANK WRZESINSKI, OF CHICAGO, ILLINOIS.

LO'CK.

SPECIFICATION forming part of Letters Patent No. 648,451, dated May 1, 1900. Application filed December 21,1899. Serial No, 741,109. (No model.)

To 00% whom it mag concern.-

' Be it known that I, FRANK WRzEsINsKI, a

citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Locks, of which the following is a specification.

The principal object of the invention isto.

provide a simple, economical, and efficient lock; and the invention consists in the fea-. tures, combinations, and details of construction hereinafter described and claimed.

In the accompanying drawings, Figure 1 is an elevation of a lock constructed in accordance with my improvements looking at it from the back and with the back plate re-- moved; Fig. 2, an inverted elevation of a por:

tion of the catch mechanism of the lock, as hereinafter described; Fig. 3, a sectional detail of a portion of the lock, taken on line 3 of Fig. 4, looking in the direction of the arrow, Fig. 4, a verticalsectional elevation taken on line 4. of Fig. 1 looking in the direction of the arrow; Fig. 5, a detail view of the closingplate hereinafter described Figs. 6 and 7, de tailed views of the key, and Fig. 8 adetail view of the key-plate.

In constructing a lock in accordance with my improvements I make a casing consisting of a main portion A, arranged to be secured to a door B or other desired element by means of the bolts 6. This case is made of sufficient size, shape,'and strength to hold and protect the operative and other mechanisms. Slidingly mounted in this case is a dead-bolt 0, arranged to extend out of one side of the case through an opening at or about 0 and into the collar D is mounted on one portion of the key, so as to surround the lever-blade and hold it in the position shown in Fig. 6.

When the key is inserted in the lock through the opening IE, it raises the closing- .main casing.

plate E, which is pivotedto the'lock at eand held in closed position by means of a spring e. The further insertion of the key into the lock causes the ring D. to contact the closingplate, which action pushes the ring backwardly until it releases the lever-blade cl, as shown in Figs. at and 7. The releasing of the lever-blade permits it to drop downwardly, as hereinafter more fully described, until it enters the space in the dead-lock, so as to contact either shoulder a or 0 and permit the key to move the bolt inwardly and outwardly,

as may be necessary.

The locking-bolt is held in its closed position bymeans of the locking-springs G G, secured to the upper casing of the lock and having their lower free ends entering'recesses g and g, so. that the bolt can neither be moved backwardly nor forwardly until the free ends of the locking-springs are removed from engagement therewith.

In order to remove the springs from engagement with the locking-bolt and enable it to be manipulated,'the back plate H. of the casing is pivotally secured thereto at h and is provided with a catch bifurcated or formed in two parts I and I, of which the part I is stationarily secured to the plate at 'i and the other pivotally secured at i, so that it acts like the blade of a scissors. The lower ends of both these catches are notched, as at 2' to receive a latch 1 which is secured to the The upper part of one of these catches, preferably the movable part, is provided with a portion 2' adapted to be engaged by the helix or thread on the end of the key, and the other with a recess arranged opposite the part 2 As the end of the key enters between these two catches it forces the free end of the vibrating portion outwardlyagainst the tension of the spring I which action permits the latch I to be released, and thus enables the back plate ,to be swung outwardly when contacted by the end of thekey to the position shown in dotted outline in Fig. 4.

In eXaminingFigs. 2 and at it will be seen that the locking-springs are secured to the swinging back plate at gi'and 9 so that the free ends of these locking spring's, which ends are connected with thehinge-plate H, are also drawn outwardly, thereby releasing the deadbolt and enabling the key, when the parts a a are in the ,position' shown inFig.4,,to ma: Y nipulate the dead-bolt. g j V When the partsare in the position shown inFig. 4, the key may be withdrawn bysim 5 ply pulling it out, which will leave the parts. exactly as .shown. It is. often-desirable to, leave the back plate open,"as shown in Fig. i, so that the interior of the lock may be access'ible. In order to accomplish this result, a swinging blockKis provided and pivotally secured to the back plate at is, so that when the swing plate -isp ushed backwardly, asshown in Fig. 4, a spring lc' moves the swiug ing block up to the position shown in Fig. 4 and enables the back plate to be keptin such position until some extraneous device is used to bring the said block back iutofposition. (Shown in solid lines in Figs. 1 and 4.)

Iclaim- I 1. In alockj of the class described, the com- J'b'ination' of .a casing, a dead-bolt movably mounted therein,fa swinging back, plate securedto the casin g and means connected with said; back plate for engaging the dead-bolt to prevent it from being operated until after the swing-plate is operated, substantiallyias described. 5 I 2.' In a lock or the class des'cribed,the com-, bination of a casing, a 'dead-boltslidingly 'mou nted therein, a, .sw inging back plate," spring mechanism secured to the casing and having 'it'sfr'ee endsadapted to engagewith;

'therd'ead-bolt'to.lockit inits closed position, 5 means connecting the free end of the mefch anism with the swin ging; backv plate; vwhereby when-the swinging plate is moved backwardly thesp'ringsare operated to release, the deadbolt,.substantially'asdescribed.

. 3. 1m lock ofthe. class described, the

'-; iiiofbination offa casing, ;a' sliding.dead-bolt pm 'vided'wi-th a notch in its np'per portion;for m{ rs,"a swinging back' plate pivend to-the casing, spring oted at its, upper? "mechanismsecured to thefcasing and having the free ends thereof engaging withthede'ad- 1 bolt to prevent thelm'ovements of. the'same, means connectingthespring mechanism with the swinging plate so that as such plate is swung outwardly the dead-boltzis released, catch mechanismo'n the swinging plate, a .latch arranged on'th'e casing adapted to engage the catch mechan sm and hold the catch mechanism and plate in closed position until aproper key'be inserted in the lock to release the catch and back plate and permit the parts to be operated, substantially as described.

olass scr be fi In a lockof the bination of a casing, a dead-bolt 'slidingly mounted therein, a swinging plate fpivotally secured at its upper end to the casing to form the back thereof, the, upper part oi the case, the free end of whichengages with the dead-bolt, means con.-

necting the free end of the fiat springs with the swinging plate, a bifurcated catch secured to the swinging plateand arranged to be op- -erated by a proper on "its upper side forming two-shoulders against which a key may impact to operate the 'd'ead-bolt, a swinging plate forming the back of the casing and pivotally secured at its uppe'r'end to thecasing, two flatsteel springs secured to the vupper portion of the casing and engaging witha'dead-zbolt at their free ends, means connecting the springs to the swinging plate to operate the samejand release the dead-bolt, a bifurtwo flat'springs secured to mounted therein and providedwitha recess key, a latch arranged on -the casin g and adapted toen gage the catch to.

the free ends of cat-ed catch secured to the swinging plate and arrangedtobe operated by the proper key, a latch secured to the casing arranged to en- "gag e'. the bifurcated catch,'ho1d the parts in their closed position, or releaseth'em by the insertion of theproper key, and aholdingbl'ock jK pivotally securedj to .the*casing to hold the back plate inits open i'po'sition;-substant'ially' as described.

1 described a -keyrprovided witha h'elical end and a longitudinal igroov'e,'a lever-blade d 'pivotally secured 'to .-the key and adapted to be folded within thelongitudinal groove, and a movable ,ring D' adapted'to hold the parts in closed position so that'when the key is insertedin the lock itmay be moved back- .wardly to release the lever-blade and ope-rate the lock,substantially as described.

r FRANK WRZESINSKI. "Witnesses: I

K. B. CZARNECKI, A. L. SMITH.

s '6. I combinationwitha lockof f the class 75 class described','the.com- 

